From: Sui Jingfeng <sui.jingfeng@linux.dev>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Sui Jingfeng <sui.jingfeng@linux.dev>
Subject: [PATCH] drm: drm_of.c: Using EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL
Date: Tue, 30 Apr 2024 01:35:21 +0800 [thread overview]
Message-ID: <20240429173521.709719-1-sui.jingfeng@linux.dev> (raw)
Linux kernel puts strict limits on which functions and data structures
are available to loadable kernel modules; only those that have been
explicitly exported with EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL() are
accessible. In the case of EXPORT_SYMBOL_GPL(), only modules that declare
a GPL-compatible license will be able to see the symbol.
Since the whole drm_of.c file is declared with GPL-2.0-only license, so
let us keep functions in that source file consistently.
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
---
drivers/gpu/drm/drm_of.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 177b600895d3..1ca36d654e61 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -44,7 +44,7 @@ uint32_t drm_of_crtc_port_mask(struct drm_device *dev,
return 0;
}
-EXPORT_SYMBOL(drm_of_crtc_port_mask);
+EXPORT_SYMBOL_GPL(drm_of_crtc_port_mask);
/**
* drm_of_find_possible_crtcs - find the possible CRTCs for an encoder port
@@ -77,7 +77,7 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
return possible_crtcs;
}
-EXPORT_SYMBOL(drm_of_find_possible_crtcs);
+EXPORT_SYMBOL_GPL(drm_of_find_possible_crtcs);
/**
* drm_of_component_match_add - Add a component helper OF node match rule
@@ -181,7 +181,7 @@ int drm_of_component_probe(struct device *dev,
return component_master_add_with_match(dev, m_ops, match);
}
-EXPORT_SYMBOL(drm_of_component_probe);
+EXPORT_SYMBOL_GPL(drm_of_component_probe);
/*
* drm_of_encoder_active_endpoint - return the active encoder endpoint
--
2.34.1
next reply other threads:[~2024-04-29 17:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 17:35 Sui Jingfeng [this message]
2024-04-30 9:26 ` [PATCH] drm: drm_of.c: Using EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL Maxime Ripard
2024-04-30 17:13 ` Sui Jingfeng
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